oppugn
To contradict or controvert; to oppose; to challenge or question the truth or validity of a given statement.
rare, transitive
And virtue invious ways can prove, What may not he confide to do That brings both love and virtue too?
If nothing can oppugne love,
Where it comes from
From Middle French oppugner Latin oppugno (“fight against, to attack, assail, assault, storm, besiege, war with”).
Adapted from the Wiktionary entry oppugn (CC BY-SA 4.0).